{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15952",
    "entityType": "User",
    "nonce": "0x8b6fabfe0fdf7380826ce11293f7db252b0c24f055d52b3030ef65d8dcd25b5b",
    "signature": "0x3bed310098816b68a3e3be2e8e248f50f7d18eb20512bdc6dfd46e554684d7d61a8b6f37bc1640a965f3a3f7b9241cc2c4dbd88441bcd9408a7569365fc3ff2b1c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}